As one of its daily deals, Best Buy via eBay offers the CyberPower 8-Outlet 450VA UPS Battery Backup for $34.99 with free shipping. That's the lowest price we could find by $14. It features 890 joules of surge protection, four outlets with battery backup, EMI/RFI noise filter, and a USB port.

Also available is the CyberPower 8-Outlet 650VA UPS Battery Backup for $54.99 with free shipping. That's the lowest price we could find by $8. It features 890 joules of surge protection, four outlets with battery backup, EMI/RFI noise filter, and a USB port. Both deals end today.